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## Network Manager Telecom warnings

When you import a comsof network design into Network Manager Telecom, some operations may trigger warnings. Below is a (non-exhaustive) list of warnings you can encounter, with a brief explanation to help you understand and preferably resolve the issue.

### Cannot find <ref_gid>

Precise warning:

<gid,rec:fld>: Cannot find <ref_gid>

Example:

splitter#326 fiber_splitter(100000,comsof_design/chesterfield) : housing : Cannot find closure#417

This occurs when trying to import a comsof feature that does not have a representation in Network Manager Telecom.

To resolve this issue you need to change the comsof import mappings mywcom.import_config.comsof.

Take the steps below.

1. Go to the Configuration module on the Network Manager Telecom homepage.

2. Select Settings.

3. Open the Advanced tab sheet.

4. Enter `import_config` as a filter in the search bar.

   The various import configs of the application are displayed.

5. Click the import config in which you need to configure the missing mapping.

   To resolve the issue illustrated in the above example, an update to the mywcom.import_config.comsof is needed.

6. Add the mapping specifications for the missing feature in the JSON editing field.

Figure: Import config mapping update for the missing feature

### Unknown feature type

Precise warning:

Unknown feature type - skipping <feature_type>

This is due to the fact that no Network Manager Telecom equivalent can be found for a comsof feature in the import mapping mywcom.import_config.comsof. As a result, the latter cannot be mapped to a valid feature type, which raises this warning.

To resolve this issue you need to make sure that all the mapping instructions in the import mapping refer to an existing `NMT feature_type`.

### Cannot handle change type

Precise warning:

<feature_type, gid>: Cannot handle change type: <change_type>

The two valid values for `myw_change_type` insert or update. Any other than either of these two values triggers this warning.